<template>
    <div class="login_container">
       <div class="login_box">
            <!-- 头像 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
             <!-- 登录表单 -->
            <el-form :model="loginForm" ref="LoginFormRef" :rules="loginFormRules" label-width="0px" class="login_form">
                  <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user" ></el-input>
                </el-form-item> 
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input type="password" v-model="loginForm.password" prefix-icon="iconfont icon-3702mima"></el-input> 
                </el-form-item> 
                 <!-- 按钮 -->                      
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item> 
            </el-form>
       </div>
    </div>
</template>

<script>
    export default {
         data() {
            return {
            //数据绑定
            loginForm: {
                username: 'admin',
                password: '123456'
            },
            //表单验证规则
            loginFormRules: {
                username: [
                { required: true, message: '请输入登录名', trigger: 'blur' },
                {
                    min: 3,
                    max: 10,
                    message: '登录名长度在 3 到 10 个字符',
                    trigger: 'blur'
                }
                ],
                password: [
                { required: true, message: '请输入密码', trigger: 'blur' },
                {
                    min: 6,
                    max: 15,
                    message: '密码长度在 6 到 15 个字符',
                    trigger: 'blur'
                }
                ]
            }
            }
         },
         methods:{
              //添加表单重置方法
            resetLoginForm() {
            //this=>当前组件对象，其中的属性$refs包含了设置的表单ref
            //   console.log(this)
            // $refs对象
            this.$refs.LoginFormRef.resetFields()
            },
            login(){
                this.$refs.LoginFormRef.validate(async (valid)=>{
                    // console.log(valid); 返回结果是布尔型
                    if(!valid) return;
                    const {data:res} = await this.$http.post('login',this.loginForm)
                    // console.log(res)
                    if(res.meta.status !== 200) return this.$message.error('登录失败')
                    this.$message.success('登录成功');
                    window.sessionStorage.setItem("token",res.data.token)
                    this.$router.push("/home")
                })
            }
         }  
    }
</script>

<style lang="less" scoped>
    .login_container {
        background-color: rgb(107, 99, 179);
        height: 100%;
    }
    .login_box {
        width: 450px;
        height: 300px;
        background-color: #fff;
        border-radius: 3px;
        position: absolute;
        left:50%;
        top:50%;
        transform: translate(-50%,-50%);
        .avatar_box {
            height: 130px;
            width: 130px;
            border: 1px solid #eee;
            border-radius: 50%;
            padding: 10px;
            box-shadow: 0 0 10px #ddd;
            position: absolute;
            left: 50%;
            transform: translate(-50%, -50%);
            background-color: #fff;
                img {
                width: 100%;
                height: 100%;
                border-radius: 50%;
                background-color: #eee;
                }
        }
    }
    .login_form {
        position: absolute;
        bottom: 0;
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }
    .btns {
        display: flex;
        justify-content: flex-end;
    }
</style>